Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755345Ab3JaSze (ORCPT ); Thu, 31 Oct 2013 14:55:34 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:37748 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752134Ab3JaSzc (ORCPT ); Thu, 31 Oct 2013 14:55:32 -0400 X-AuditID: cbfec7f4-b7f0a6d000007b1b-fa-5272a7a2dc85 Message-id: <5272A7A0.7020800@samsung.com> Date: Thu, 31 Oct 2013 19:55:28 +0100 From: Sylwester Nawrocki User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-version: 1.0 To: Stephen Warren Cc: mturquette@linaro.org, linux-arm-kernel@lists.infradead.org, linux@arm.linux.org.uk, jiada_wang@mentor.com, kyungmin.park@samsung.com, laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, uclinux-dist-devel@blackfin.uclinux.org, linux-mips@linux-mips.org, linux-sh@vger.kernel.org, "linux-next@vger.kernel.org" Subject: Re: [PATCH v7 5/5] clk: Implement clk_unregister() References: <1383076268-8984-1-git-send-email-s.nawrocki@samsung.com> <1383076268-8984-6-git-send-email-s.nawrocki@samsung.com> <5272A24A.30800@wwwdotorg.org> In-reply-to: <5272A24A.30800@wwwdotorg.org> Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDLMWRmVeSWpSXmKPExsVy+t/xq7qLlhcFGXyaZW3R86fS4mzTG3aL zolL2C02Pb7GanF51xw2iwlTJ7FbHFzYxmgx588UZovbl3ktnk64yGbx6mAbi8XChi/sDjwe Lc09bB4rp3t7zO6Yyepx59oeNo+jK9cyeWxeUu+x+2sTo0ffllWMHp83yXlsnBsawBXFZZOS mpNZllqkb5fAlbHrwxe2gu/cFWu2XGVuYLzK2cXIySEhYCIx4WQfI4QtJnHh3nq2LkYuDiGB pYwS69ZOZwNJCAl8YpR4Od0DxOYV0JLY9rybBcRmEVCVeL92DTOIzSZgKNF7FGKQqECYxNGm n6wQ9YISPybfA6sXAeqd9OwfI8gCZoG3TBKHpvSCFQkLWEvMWHqLBWLzIkaJW7uus4MkOAW0 JRr//QfbwCygI7G/dRobhC0vsXnNW+YJjAKzkCyZhaRsFpKyBYzMqxhFU0uTC4qT0nMN9YoT c4tL89L1kvNzNzFCYujLDsbFx6wOMQpwMCrx8L7oKwoSYk0sK67MPcQowcGsJMIrkgMU4k1J rKxKLcqPLyrNSS0+xMjEwSnVwOhgP99/bc+ve7sKJT+f+3aSK2Rdcf0sV8EXpTtYDx+etvvy U02JSb5X3nV1pM9O8Gwy8Tl1uWXGjhrWskf7JDbnOl5vSg0/3/C/adEFrXnurgVipWUPOk6e eZzGfpA/sDBR71SI2Jrbk8U3dDx6s5rBzd7gfsq9/dW652xM5x+dvLZsUlfMlB9KLMUZiYZa zEXFiQDJURO/fwIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1734 Lines: 43 On 31/10/13 19:32, Stephen Warren wrote: > On 10/29/2013 01:51 PM, Sylwester Nawrocki wrote: >> > clk_unregister() is currently not implemented and it is required when >> > a clock provider module needs to be unloaded. >> > >> > Normally the clock supplier module is prevented to be unloaded by >> > taking reference on the module in clk_get(). >> > >> > For cases when the clock supplier module deinitializes despite the >> > consumers of its clocks holding a reference on the module, e.g. when >> > the driver is unbound through "unbind" sysfs attribute, there are >> > empty clock ops added. These ops are assigned temporarily to struct >> > clk and used until all consumers release the clock, to avoid invoking >> > callbacks from the module which just got removed. > > This patch is now in Mike's clk-next and hence next-20131031, and causes > both a WARN and an OOPS when booting the Tegra Dalmore board. (See log > below) > > If I do the following to fix some other issues: > > 1) Apply: > http://www.spinics.net/lists/arm-kernel/msg283619.html > clk: fix boot panic with non-dev-associated clocks > > 2) Merge some Tegra-specific bug-fixes: > https://lkml.org/lkml/2013/10/29/771 > Re: pull request for Tegra clock rework and Tegra124 clock support > > ... then revert this patch a336ed7 "clk: Implement clk_unregister()", > everything works again. Does it still crash when you apply this patch http://www.spinics.net/lists/arm-kernel/msg283550.html ? -- Thanks, Sylwester -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/